Messages in this thread Patch in this message | | | Date | Tue, 18 Oct 2011 13:41:35 -0500 | From | David Smith <> | Subject | [RFC PATCH] Tracepoint: add exec tracepoint |
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Added general purpose exec tracepoint. The 'bprm' argument gives details of the exec.
Signed-off-by: David Smith <dsmith@redhat.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> --- fs/exec.c | 6 +++++- include/trace/events/sched.h | 22 ++++++++++++++++++++++ 2 files changed, 27 insertions(+), 1 deletions(-)
diff --git a/fs/exec.c b/fs/exec.c index 25dcbe5..fdb1686 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -61,6 +61,8 @@ #include <asm/tlb.h> #include "internal.h" +#include <trace/events/sched.h> + int core_uses_pid; char core_pattern[CORENAME_MAX_SIZE] = "core"; unsigned int core_pipe_limit; @@ -1401,9 +1403,11 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) */ bprm->recursion_depth = depth; if (retval >= 0) { - if (depth == 0) + if (depth == 0) { + trace_sched_process_exec(bprm); ptrace_event(PTRACE_EVENT_EXEC, old_pid); + } put_binfmt(fmt); allow_write_access(bprm->file); if (bprm->file) diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index f633478..3054a97 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -275,6 +275,28 @@ TRACE_EVENT(sched_process_fork, ); /* + * Tracepoint for exec: + */ +TRACE_EVENT(sched_process_exec, + + TP_PROTO(struct linux_binprm *bprm), + + TP_ARGS(bprm), + + TP_STRUCT__entry( + __string( filename, bprm->filename ) + __field( pid_t, pid ) + ), + + TP_fast_assign( + __assign_str(filename, bprm->filename); + __entry->pid = current->pid; + ), + + TP_printk("filename=%s pid=%d", __get_str(filename), __entry->pid) +); + +/* * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE * adding sched_stat support to SCHED_FIFO/RR would be welcome. */
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